Rachel Bloom of Crazy Ex-Girlfriend fame wrote a song for the Flash and Supergirl musical crossover.
Darren Criss has been cast as the Music Meister in the Flash/Supergirl musical crossover.
The CW has released details about the upcoming musical crossover between The Flash and Supergirl.
The DC "Invasion!" crossover brought big ratings for The Flash.
Marc Guggenheim talks about the "Hall of Justice" seen in this year's DC TV crossover.
The CW has released an "Inside: Invasion!" video and a preview clip for tonight's episode of The Flash.
Preview trailer for the Flash episode "Invasion!" - part of the "Heroes v Aliens" crossover
The CW has created a behind-the-scenes video for The Flash portion of the "Heroes v Aliens" crossover.
Preview images for the Flash portion of The CW's four-show "Invasion!" crossover.
The CW has released their official description for The Flash's role in the four-part "Invasion!" crossover.